hutchins



(No Model.) 2 Sheets-Sheet` 1.

Y G. F. HUTGHINS. POSITIVE SHUTTLE QPBRATING MEGHANISM ToR'LooMs.

(No Model.)

2 Sheets-Sheet 2.

G. F. HUTGHINS; POSITIVE SHUTTLE OPERATING MEGEANISM EOE Looms.

Patented Aug. 4, A1891.

Q/@Mmaooao @mfom/Lto@ ud n i m, Ma mw UNTTED STATES PATENT OFFICE.

GEORGE F. HUTOHINS, OF VORGESTER, MASSACHUSETTS,'ASSIGNOR TO THE i KNOVLES LOOM VORKS, OF SAME PLACE.

n POSITIVE SHUTTLE-OPERATING MECHANISM FOR LOONIS.

SPECIFICATION forming part of Letters Patent No. 457,084, dated August 4, 1891. v

Application i'lled October Z5, 1890- Serial No. 369,298. (No model.) I

To a/ZZ whom, t may concern.:

Be it known that I, GEORGE F. HUTOHINS,

Y a citizen of the United States, residing at XVorcester, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Looms; and I do hereby declare that the following is a full, clear, and exact description thereof, which, in connection with the drawings making a part 1o thereof, will enable others skilled in the art to which my invention belongs to make and use the same.

My invention relates to looms, and more particularly to the shuttle-operating mechanism of narrow-ware looms.

i The object of my invention is to improve upon the shuttle-operating mechanism of narrow-ware looms now ordinarily used, and to simplify the construction thereof and make zo more effective the operation of the same.

My invention consists in certain novel features of construction and operation of the shuttle-operating mechanism of narrow-ware looms, and more particularly in combining with two cams two sets of levers, one set of levers working on the cams and the second set of levers receiving motion from the first set and giving motion to the shuttle-rack mechanism by connecting-straps. The move- 3o ment of the second set of levers is adjusted by changing the vpoint of attachment of thev connection to said levers, moving the same nearer to or farther from the fulcrum of said levers, all as will be hereinafter fully de-V scribed.

Referring to the drawings, Figure 1 is a side elevation of a portion of a loom with my improvement applied thereto; and Fig. 2 is a front View, partly sectional, looking' in the -direction of arrow, Fig. 1.

I have shown in the drawings sufficient partsof a narrow-ware loom with my improvements applied thereto to clearly illustrate the nature of my invention.

In the accompanying drawings, 1 is the loom side; 2, the crank-shaft; 3, the lay, and et the breast-beam, all as ordinarily constructed and` arranged in narrow-ware looms. On the crank-shaft 2 is fast the gear 5, which meshes 5o with the gear 6, having twice the number of teeth and loose on a stud 7, fast on the loom side 1. Secured to the gear 6 are two cams 8 and 9. On a stud 10, fast on the loom side, are hung the levers 11 and 12, carrying the rolls 13 and 14, which engage with and 55 work on the cams S and 9, respectively. From the free ends of the levers 11 and 12 extend the connectors 15 and 16 to the levers 17 and 18, hung on the stud 19 on the loom side below the stud 10. From the free ends 6 0 of the levers 17 and 18 run the straps 20,and 21, which give motion to the shuttle-rack in the lay 3, which operates the shuttles in the ordinary way. The connectors 15 and 16 between the levers 11 and 12 and levers 17 and 65 1S are preferably attached at their lower ends to the levers 17 .and 18 by means of clamps 22 and 23, which may be moved on said levers toward or away from their fulcrum and secured in place thereon by set- 7o screws 24.

The operation of my improved shuttle-operating mechanism for narrow-ware looms will be readily understood by those skilled in the artfrom the above description in connection with the drawings, and is as follows: The crankshaftl revolves once in every beatof the lay, and as the gear 6 has twice the number of teeth of the gear 5 the cams 8 and 9 will revolve with the gear 6 once in every two 8o beats. The two levers 11 and 12 work, respectively, with the two cams S and 9,0ne le- Ver. being on the high part of its cam when the other lever is on the low `part of its cam, as shown in the drawings. levers 17 and 18, operated by the levers 11 and 12, through the connections 15 and 16, are given more or less motion by adjusting the clamps 22 and 23nearer to or farther from the fulcrum 19 of said levers. The lay 9o 3 is made in the ordinary manner, with the rack-bar 25 and pinions 26 to drive the sl1uttles 27. The straps 20 and 21 pass over pulleys 28 and 29 to draw the shuttle-rack 25 first in one direction and then in the other. 95 Then the lever 11 is forced down by cam S, the shuttle-rack 25, through connector 15, lever 17, and strap 20, is pulled one way, and when cam 9 forces downlever l2 the shuttlerack 25, through connector 16, lever 1S, and roo strap 21, is pulled the opposite way, and the lever 11 is drawn up onto the lower part of The free ends of cani 8 in' the opposite position from what is shown'in the drawings. It willthus be seen that the shuttle-rack 25, which operates the pinions 26 and the shuttles 27, is moved positively first in one direction and then in the other.

The details of construction of the several parts of my improvements may be varied somewhat from what is shown and described, it' desired.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, isi 1. In a narrow-ware loom, the combination, with the shuttle-rack, two straps connected therewith and two levers connected to said straps, of two connectors adj ustably attached at their lower ends to said levers and connected at their upper ends to two other levers, and said levers and two cams, each otl said cams acting on one of the last-mentioned levers, and means for operating said cams to cause said levers to have a positive up-anddown motion, for the purpose stated, substantially as set forth.

2. In the shuttle-operating mechanism of aA narrow-ware loom, the combination, with two oppositely-arranged cams and means for operating the same, and two levers, each of said levers receiving motion from one of said cams, of two connectors from said levers to two other levers, said connectors adj ustably attached at their lower ends to said last-mentioned levers, and said levers and two straps leading from said levers to the shuttle-rack, and said shuttlc-rack for driving the shuttles, substantially as set forth. I

3. In a narrow-ware loom, the combination, with a crank-shaft, a gear fast thereon driving a second gear, and said second gear and two oppositely-arrangedv cams moved with said second gear, of a pair of levers driven by said cams, connectors to a second pair of levers, said connectors adjustably attached at their lowerends to said second pair of levers, and said second pair of levers connected with and operating the straps connected with the sh Little-rack, and said straps and shuttle-rack, substantially as set forth.

GEORGE F. HUTCHINS. Witnesses:

JOHN C. DEWEY, EDMUND F. SEYMOUR. 

